| A lot of method on it is electric for safety evaluation,if check table(SCL) not safe, the getting more dangerous to analyse (PRA) in advance, trouble type and influencing analysing (FREA ), the dangerous effectiveness is studied (MOP), the accident tree is analysed (FTA), the incident tree is analysed (ETA) etc.. In the actual appraisal project , adopt the qualitative accident tree to appraise more methods , but because of receiving the restraint of the top incident, it is not overall enough to appraise the content, and it is not enough to combine with enterprise's actual conditions, so to a certain extent, safety evaluation has lost the meaning.This text uses the fuzzy mathematics theory, introduce the safety evaluation of the chemical enterprise's electric system of the fuzzy comprehensive appraisal method , have put forward the electric safety evaluation new method of industrial enterprise --Combine the electric safe check table, carry on comprehensive appraisal to the electric safe overall levels of enterprises, draw the electric safe grade .The sureness of the weight factor, has adopted the level analytic approach (AHP) of determining the nature and combining together with the ration, make assignment science of weight, rational, reflect every factor to electric safe important degree of current situation well. Appraise the factor system and already include enough amount of information, try one's best to reduce the dependence among the factors at the same time , make it reflect enterprise's electric safe current situation objectively.It is fuzzy to judge multi-level model synthetically for this text to set up, discuss fuzzy to formate choice and fuzzy to judge the pluses and minuses of the method synthetically of operator in detail, and apply it to an electric safe fuzzy comprehensive appraisal instance .
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